Root & Lag fix - now or wait...

OK, so I've spent some time researching how to root and apply various fixes to the SGS. I'm very technical so it shouldn't be too much of an issue to do.

I guess all I need to know at the moment is if there are any 'gotchas' I should be aware of?

Originally I thought this might not be possible as I'm on a T-Mo contract for 2 years and the phone would be locked. Imagine the surprise when I discovered I have no network lock or any subsidy codes set, also tested on the O2 network

I'm also wondering whether it's worth doing now or holding out until the Froyo update materializes...